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International Association Of Music Libraries Archives &Documentation

  • Middleton, WI
  • Tax-exempt since April 2018
  • EIN: 82-1461778

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Arts, Culture and Humanities / Music (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$165k (2024)

Expenses
$90.3k (2024)

Total Assets
$560k (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2018 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$164,970
Expenses
$90,328
Net Income
$74,642
Net Assets
$559,747
Notable Sources of Revenue Percent of Total Revenue
Contributions $120,283
72.9%
Program Services $21,299
12.9%
Investment Income $23,388
14.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $10,122
11.2%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $559,747
Total Liabilities $0
Net Assets $559,747
Compensation
Key Employees and Officers Compensation Related Other
Anders Cato (Secretary General) $0 $0 $2,165
Kimmy Szeto (Treasurer) $0 $0 $2,105
James P Cassaro (Journal Editor) $0 $0 $2,084
Richard Ranft (Webmaster) $0 $0 $1,624
Jennifer Ward (Webeditor) $0 $0 $1,624
Anna Pensaert (Vice President) $0 $0 $0
Jurgen Diet (Vice President) $0 $0 $0
Rupert Ridgewell (President) $0 $0 $0
Pia Shekhter (Past President) $0 $0 $0
Stefan Engl (Vice President) $0 $0 $0
Janneka Guise (Vice President) $0 $0 $0
+ View more people

Document Links

990
Filed on Oct. 16, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$191,691
Expenses
$98,749
Net Income
$92,942
Net Assets
$485,105
Notable Sources of Revenue Percent of Total Revenue
Contributions $166,919
87.1%
Program Services $24,772
12.9%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $11,246
11.4%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $485,105
Total Liabilities $0
Net Assets $485,105
Compensation
Key Employees and Officers Compensation Related Other
James P Cassaro (Journal Editor) $0 $0 $2,217
Anders Cato (Secretary General) $0 $0 $2,163
Kimmy Szeto (Treasurer) $0 $0 $2,084
Richard Ranft (Webmaster) $0 $0 $1,623
Jennifer Ward (Webeditor) $0 $0 $1,623
Jane Gottlieb (Vice President) $0 $0 $0
Anna Pensaert (Vice President) $0 $0 $0
Jurgen Diet (Vice President) $0 $0 $0
Rupert Ridgewell (President) $0 $0 $0
Pia Shekhter (Past President) $0 $0 $0
Stanislaw Hrabia (Past President) $0 $0 $0
Stefan Engl (Vice President) $0 $0 $0
Janneka Guise (Vice President) $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 9, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$213,450
Expenses
$79,356
Net Income
$134,094
Net Assets
$375,686
Notable Sources of Revenue Percent of Total Revenue
Contributions $184,478
86.4%
Program Services $21,895
10.3%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $7,077
3.3%
Notable Expenses Percent of Total Expenses
Executive Compensation $8,449
10.6%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $375,686
Total Liabilities $0
Net Assets $375,686
Compensation
Key Employees and Officers Compensation Related Other
James P Cassaro (Journal Editor) $2,122 $0 $0
Anders Cato (Secretary General) $2,106 $0 $0
Richard Ranft (Webmaster) $1,580 $0 $0
Jennifer Ward (Webeditor) $1,580 $0 $0
Kimmy Szeto (Treasurer) $1,061 $0 $0
Jane Gottlieb (Vice President) $0 $0 $0
Anna Pensaert (Vice President) $0 $0 $0
Jurgen Diet (Vice President) $0 $0 $0
Rupert Ridgewell (Vice President) $0 $0 $0
Pia Shekhter (President) $0 $0 $0
Stanislaw Hrabia (Past President) $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 14, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$108,965
Expenses
$117,569
Net Income
-$8,604
Net Assets
$257,285
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,000
4.6%
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $27,027
24.8%
Assets/Debt
Total Assets $257,285
Total Liabilities $0
Net Assets $257,285
Compensation
Key Employees and Officers Compensation Other
Anders Cato (Secretary General) $2,265 $0
Thomas Kalk (Treasurer) $2,265 $0
James P Cassaro (Journal Editor) $2,264 $0
Richard Ranft (Webmaster) $1,699 $0
Jennifer Ward (Webeditor) $1,699 $0
Michelle Hahn (Webeditor Assistant) $849 $0
Pia Shekhter (President) $0 $0
Stanislaw Hrabia (Past President) $0 $0
Jane Gottlieb (Vice President) $0 $0
Anna Pensaert (Vice President) $0 $0
Jurgen Diet (Vice President) $0 $0
Rupert Ridgewell (Vice President) $0 $0
+ View more people

Document Links

990-EZ
Filed on Oct. 16, 2022

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$97,660
Expenses
$43,303
Net Income
$54,357
Net Assets
$260,017
Notable Sources of Revenue Percent of Total Revenue
Contributions $80,306
82.2%
Program Services $0
Investment Income $0
Bond Proceeds $0
Royalties $17,354
17.8%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $11,941
27.6%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $260,017
Total Liabilities $0
Net Assets $260,017
Other
Operated a donor-advised fund
Compensation
Key Employees and Officers Compensation Related Other
Anders Cato (Secretary General) $2,457 $0 $0
Thomas Kalk (Treasurer) $2,457 $0 $0
James P Cassaro (Journal Editor) $2,430 $0 $0
Richard Ranft (Webmaster) $1,843 $0 $0
Jennifer Ward (Webeditor) $1,843 $0 $0
Michelle Hahn (Webeditor Assistant) $911 $0 $0
Stanislaw Hrabia (President) $0 $0 $0
Pia Shekhter (President Elect) $0 $0 $0
Jane Gottlieb (Vice President) $0 $0 $0
Anna Pensaert (Vice President) $0 $0 $0
Jurgen Diet (Vice President) $0 $0 $0
Rupert Ridgewell (Vice President) $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 1, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$110,695
Expenses
$84,055
Net Income
$26,640
Net Assets
$200,036
Notable Sources of Revenue Percent of Total Revenue
Contributions $87,217
78.8%
Program Services $0
Investment Income $0
Bond Proceeds $0
Royalties $18,368
16.6%
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $5,110
4.6%
Notable Expenses Percent of Total Expenses
Executive Compensation $12,401
14.8%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $200,036
Total Liabilities $0
Net Assets $200,036
Other
Operated a donor-advised fund
Compensation
Key Employees and Officers Compensation Related Other
Anders Cato (Secretary General) $2,240 $0 $0
Thomas Kalk (Treasurer) $2,240 $0 $0
James P Cassaro (Journal Editor) $2,225 $0 $0
Richard Ranft (Webmaster) $1,680 $0 $0
Jennifer Ward (Webeditor) $1,680 $0 $0
Michelle Hahn (Webeditor Assistant) $834 $0 $0
Stephanie Bonjack (Journal Ads Manager) $656 $0 $0
Stanislaw Hrabia (President) $0 $0 $0
Pia Shekhter (President Elect) $0 $0 $0
Jane Gottlieb (Vice President) $0 $0 $0
Anna Pensaert (Vice President) $0 $0 $0
Jurgen Diet (Vice President) $0 $0 $0
Rupert Ridgewell (Vice President) $0 $0 $0
+ View more people

Document Links

990
Filed on Aug. 7, 2020

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$112,004
Expenses
$85,938
Net Income
$26,066
Net Assets
$73,525
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,944
1.7%
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $25,089
22.4%
Assets/Debt
Total Assets $73,525
Total Liabilities $0
Net Assets $73,525
Compensation
Key Employees and Officers Compensation Other
Anders Cato (Secretary General) $2,288 $0
Thomas Kalk (Treasurer) $2,288 $0
James P Cassaro (Journal Editor) $2,288 $0
Richard Ranft (Webmaster) $2,002 $0
Jennifer Ward (Webeditor) $1,716 $0
Stephanie Bonjack (Journal Ads Manager) $1,073 $0
Michelle Hahn (Webeditor Assistant) $854 $0
Stanislaw Hrabia (President) $0 $0
Barbara Dobbs Mackenzie (Past President) $0 $0
Jane Gottlieb (Vice President) $0 $0
Joseph Hafner (Vice President) $0 $0
Balazs Mikusi (Vice President) $0 $0
Rupert Ridgewell (Vice President) $0 $0
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Document Links

990-EZ
Filed on Oct. 31, 2019

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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